Frattura ed Integrità Strutturale (Jun 2021)

Fully implicit numerical integration of the Yoshida-Uemori two-surface plasticity model with isotropic hardening stagnation

  • Riccardo Fincato,
  • Seiichiro Tsutsumi,
  • Alex Zilio,
  • Gianluca Mazzucco,
  • Valentina Salomoni

Journal volume & issue
Vol. 15, no. 57

Abstract

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The paper deals with the numerical investigation and implementation of the two-surface plasticity model (or bounding surface model). This plasticity theory allows to describe the deformation behavior under large strain cyclic plasticity and the material stress-strain responses at small-scale re-yielding after large pre-straining. A novel strategy to model the isotropic hardening stagnation is developed within a fully implicit integration scheme in order to speed up the computation and to improve the material description.

Keywords